Calculaion of vat

Plz calculate VAT payable if, Profit margin ks 15% on cost nd vat on sales @ 12.5% Intra state pur. of R/M rs. 250000(excluding vat @ 4%) Purchs of R/M frn unregisterd dealr rs. 80000(including vat @ 12.5%) Forign markek pur. rs. 185000(excluding custom duty @ 10%) Pur frm othr state(excluding cst @ 2%) for rs. 50000 Transportatin chrgs 145000 Interest paid to bank 70000 rs.